Nitrogen and Carbon Cycling in a Grassland Community Ecosystem as Affected by Elevated Atmospheric CO2
Joint Authors
Johnson, H. B.
Polley, H. W.
Torbert, H. Allen
Source
International Journal of Agronomy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-23
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Increasing global atmospheric carbon dioxide (CO2) concentration has led to concerns regarding its potential effects on terrestrial ecosystems and the long-term storage of carbon (C) and nitrogen (N) in soil.
This study examined responses to elevated CO2 in a grass ecosystem invaded with a leguminous shrub Acacia farnesiana (L.) Willd (Huisache).
Seedlings of Acacia along with grass species were grown for 13 months at CO2 concentrations of 385 (ambient), 690, and 980 μmol mol−1.
Elevated CO2 increased both C and N inputs from plant growth which would result in higher soil C from litter fall, root turnover, and excretions.
Results from the incubation indicated an initial (20 days) decrease in N mineralization which resulted in no change in C mineralization.
However, after 40 and 60 days, an increase in both C and N mineralization was observed.
These increases would indicate that increases in soil C storage may not occur in grass ecosystems that are invaded with Acacia over the long term.
American Psychological Association (APA)
Torbert, H. Allen& Polley, H. W.& Johnson, H. B.. 2012. Nitrogen and Carbon Cycling in a Grassland Community Ecosystem as Affected by Elevated Atmospheric CO2. International Journal of Agronomy،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-500492
Modern Language Association (MLA)
Torbert, H. Allen…[et al.]. Nitrogen and Carbon Cycling in a Grassland Community Ecosystem as Affected by Elevated Atmospheric CO2. International Journal of Agronomy No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-500492
American Medical Association (AMA)
Torbert, H. Allen& Polley, H. W.& Johnson, H. B.. Nitrogen and Carbon Cycling in a Grassland Community Ecosystem as Affected by Elevated Atmospheric CO2. International Journal of Agronomy. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-500492
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-500492